The pre-compiled WRFDA can be accessed from /kumquat/wrfhelp/SOURCE_CODE/WRFDA.
You should copy the pre-compiled code into your local working directory. Follow the steps below:
mkdir /kumquat/users/${USER}/DA (your main working directory)
cd /kumquat/users/${USER}/DA
cp /kumquat/wrfhelp/SOURCE_CODE/WRFDA/WRFDA_compiled.tar.gz .
tar -xzf WRFDA_compiled.tar.gz
This will generate the WRFDA directory containing the compiled WRFDA package. The WRFDA code is pre-compiled to run in parallel (dmpar) mode using the PGI compiler.
The command for running a dmpar job on the classroom machine is
mpirun -np 4 ${your_exe_file}
Note: In the pre-compiled tar file, the code was compiled for 3D-VAR and 4D-VAR separately, but the executables are placed under the same WRFDA/var/build directory with the 3DVAR and 4DVAR executables renamed as da_wrfvar_3dvar.exe and da_wrfvar_4dvar.exe respectively.
Note: In the pre-compiled tar file, the un-supported scripts (can be downloaded separately from http://www.mmm.ucar.edu/wrf/users/wrfda/download/tools.html) are already included.